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arXiv:1406.6466 · Physical Review X

Coherent versus Measurement Feedback: Linear Systems Theory for Quantum Information

Naoki Yamamoto

Published Nov 14, 2014• 106 citations
arXivHTMLPDF

Abstract

Deciding whether to conduct a measurement is a fundamental tenant of quantum physics. A new analysis finds situations in the linear regime where measurement-based feedback control of a quantum system has no merit.
DOI
10.1103/physrevx.4.041029

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